Edinburgh Vaults Ghost Picture

We've never seen a brown haze, such as in this picture from Susie of North Carolina. We're not sure if the curtains caused this or not. Usually, we receive shadow ghosts or black ectoplasm in our submissions. Is this ghostly or a flash reflection? You decide...

"My name is Mark Burns. I have sent you two photos taken at the vaults in Edinburgh about a month ago. They were taken in a room the guide of the tour called the 'two floored room' -- this would explain why the two faces I see appear near the top of the room, as there would have been a floor in the middle of the room years ago. The room i was told has the reputation as being the 3rd most haunted vault on the site."